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5 Written questions

5 Matching questions

  1. what does sound need to travel
  2. what happens to the molecules in a medium as sound waves pass through?
  3. what do waves do
  4. what is constructive interference
  5. what is used to accurately describe the characteristics of a sound wave
  1. a the interference of a pair of in phase waves forms a single wave of greater amplitude than either of its components--the resulting wave is larger than its components
  2. b sound must travel through a medium, it cannot travel through a vacuum
  3. c all waves carry energy
  4. d there are 7 acoustic parameters: period, frequency, amplitude, power, intensity, wavelength, propagation speed----wif papp
  5. e the molecules are alternately compressed and rarefied (stretched apart)

5 Multiple choice questions

  1. cm,mm
  2. sound is a mechanical longitudinal wave that moves by compression and rarefaction--particles in the medium vibrate back and forth from a fixed position
  3. when multiple beams arrive at an identical location at exactly the same time and thereby lose their individual characteristics and combine to form a single wave
  4. a pair of waves are considered in phase when their peaks (maximum values) and troughs (minimum values) occur at the same time and in the same location
  5. when the frequencies of the waves differ, both constructive and destructive interference occur

5 True/False questions

  1. transverse waveparticles move in a direction that is perpendicular (at right angles) to the direction that the wave propagates

          

  2. units of densitykg/cm cubed

          

  3. destructive interferencethe interference of a pair of in phase waves forms a single wave of greater amplitude than either of its components--the resulting wave is larger than its components

          

  4. what are some different types of wavessound, light, magnetic, and heat

          

  5. what kind of line does sound travel instraight or longitudinal

          

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